Question

Q20) A market research group conducted a survey of 60 consumers and reported that 32 consumers like product A,21 consumers like product B and 11 consumers like both the products A and B, then number of consumers who like neither product A nor product B are (a) 42 (b) 20 (c)18 (d)28​

Answer 1

A is the answer I think I

Step-by-step explanation:

Th

Answer 2

Given :  A market research group conducted a survey of 60 consumers  reported that

32 consumers like product A,

21 consumers like product B and

11 consumers like both the products A and B,

To find :  number of consumers who like neither product A nor product B  

(a) 42 (b) 20 (c)18 (d)28​

Solution:

Total = 60

A =  32

B = 21

A ∩ B = 11

None = A' ∩ B'  =  ?

A U B= A + B  - A ∩ B  

=>  A U B= 32 + 21  - 11

=>  A U B=  42

( A U B)' = Total -   A U B

=>   ( A U B)' =  60 - 42  = 18

number of consumers who like neither product A nor product B

A' ∩ B'  =  ( A U B)' = 18

or

Total = A + B -  A ∩ B   + None  

=> 60 = 32 + 21 - 11 + None

=> None  = 18

18 consumers  like neither product A nor product B

Learn More:

A={x:x is a prime factor of 210}B={x:x ≤10 and x € N, show that ...

brainly.in/question/13361272

If A represents the Natural numbers less than 20 and B represents ...

brainly.in/question/18949284